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OpenStudy (anonymous):
Which equations show that the set of whole numbers is closed under addition? Choose all answers that are correct. A. 0 + (–1) = –1 B. 1 + 1 = 2 C. 2 + 0 = 2 D. 2 + (–1) = 1
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OpenStudy (anonymous):
@dan815 need help man! plss help!
OpenStudy (anonymous):
help!
OpenStudy (anonymous):
help plss
Directrix (directrix):
The first thing we need to know is how the set of whole numbers looks. |dw:1418797139468:dw|
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